A midwife posted a tweet jokingly asking couples not to have sex at Christmas time due to the high number of babies born in September.

Only five days into September, midwife Mhairi Maharry wrote on Twitter "How is it only the 5th of September? I can’t take 25 more days of this. If you know or love a midwife, PLEASE STOP S******* AT CHRISTMAS."

Official birth figures back up Mhairi's claim, showing a sharp rise in September births.